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1、無屑攻牙前鑽頭使對照表規格牙距2級用精度不同比率之差別下孔徑規格牙距2級用精度不同比率之差別下孔徑100%90%80%70%100%90%80%70%M10.250.2430.860.890.870.900.890.910.900.92M91.2510.750.577778.298.438.578.728.368.498.628.748.438.558.668.778.508.608.708.80M1.10.250.2430.960.990.971.000.991.011.001.02M1.20.250.2431.061.091.071.101.091.111.101.12M101.51.25
2、10.750.5777769.159.299.439.579.729.239.369.499.629.749.329.439.559.669.779.409.509.609.709.80M1.40.30.2431.231.291.251.301.261.311.281.32M1.60.350.2431.404.191.421.501.441.511.461.52M1.70.350.2441.501.591.521.601.541.611.561.62M111.510.75108810.1510.4310.5710.2310.4910.6210.3210.5510.6610.4010.6010.
3、70M1.80.350.2431.601.691.621.701.641.711.661.72M20.40.25441.771.861.801.871.821.891.841.91M121.751.51.251888811.0111.1511.2911.4311.1111.2311.3611.4911.2111.3211.4311.5511.3111.4011.5011.60M2.20.450.25441.942.061.972.072.002.092.022.10M2.30.40.25442.072.162.102.172.122.192.142.20M1421.51.2511098812.
4、8713.1513.2913.4312.9813.2313.3613.4913.0913.3213.4313.5513.2113.4013.5013.60M2.50.450.35442.242.302.272.322.302.342.322.36M2.60.450.35452.342.402.372.422.402.442.422.46M151.519814.1514.4314.2314.4914.3214.5514.4014.60M30.60.50.355552.662.722.802.692.742.822.732.772.842.762.802.86M1621.51109814.8715
5、.1515.4314.9815.2315.4915.0915.3215.5515.2115.4015.60M3.50.60.35553.163.303.193.323.233.343.263.36M171.5111916.1516.4316.2316.4916.3216.5516.4016.60M40.750.70.56663.573.603.723.623.643.743.663.683.773.703.723.80M182.521.51111110916.5816.8717.1517.4316.7216.9817.2317.4916.8717.0917.3217.5517.0117.211
6、7.4017.60M4.50.750.5664.074.224.124.244.164.274.204.30M202.521.51111110918.5818.8719.1519.4318.7218.9819.2319.4918.87193.0919.3219.5519.0119.2119.4019.60M50.90.80.56664.494.554.724.544.594.744.594.644.774.644.684.80M5.50.90.5664.995.225.045.245.095.275.145.30M222.521.51111110920.5820.8721.1521.4320.
7、7220.9821.2321.4920.8721.0921.3221.5521.0121.2121.4021.60M610.750.57665.435.575.725.495.625.745.555.665.775.605.705.80M710.750.57666.436.576.726.496.626.746.556.666.776.606.706.80M2421.511110922.8723.1523.4322.9823.2323.4923.0923.3223.5523.2123.4023.60M80.2510.750.577767.297.437.577.727.367.497.627.
8、747.437.557.667.777.507.607.707.80注：1.確定下孔徑參數並試著加工,此表單尺寸只提 供參考 2.精確度標準,確定以螺帽80%為基準 *3.除不鏽鋼.青銅,均用無屑攻牙,孔值下差取90%欄. 材質調質記號硬度範圍(HV)SUS3011/4H270-2901/2H300-3603/4H(一般)370-420H430-480EH490-510材質調質記號硬度範圍(HV)SUS3041/4H(一般)150-1801/2H270-2903/4H300-360H370-390材質調質記號硬度範圍(HV)SUS410240-250材質調質記號硬度範圍(HV)SUS420J2
9、200-210材質調質記號硬度範圍(HV)SUS430150-180材質調質記號硬度範圍(HV)SUS6310150-180材質調質記號硬度範圍(HV)C7521RH190-210材質調質記號硬度範圍(HV)C7701RH220-240金屬材料沖裁模刃口間隙材料厚度軟鋁紫銅.黃銅.軟銅(0.08-0.2%C)硬鋁.硅鋼片.中等硬度鋼(0.3-0.4%C)硬鋼(0.5-0.6%C)特硬鋼HV280以上初始間隙值Z最小最大最小最大最小最大最小最大最小最大t%雙面t%雙面t%雙面t%雙面t%雙面t%雙面t%雙面t%雙面t%雙面t%雙面0.10.150.20.30.40.50.60.70.80.91.
10、040.0040.0060.0080.0120.0160.0200.0240.0280.0320.0360.04060.0060.0090.0120.0180.0240.0300.0360.0420.0480.0540.06050.0050.00750.0100.0150.0200.0250.0300.0350.0400.0450.05070.0070.0100.0140.0210.0280.0350.0420.0490.0560.0630.07060.0060.0090.0120.0180.0240.0300.0360.0420.0480.0540.06080.0080.0120.0160.0240.0320.0400.0480.0560.0640.0720.08070.0070.01050.0140.0210.0280.0350.0420.0490.0560.0630.07090.0090.01350.0180.0270.0360.0450.0540.0630.0720.0810.09080.0080.0120.0160.0240.0320.040.0480.0560.0640.0720.080100.010.0150.020.030.040.050.060.070.080.090.101.21.51.82.050
